For US importers of mixed-material goods · and the brokers who file for them
Prove your products are under Section 232's 15% metal threshold — with supplier-attested weights your broker can file.
Since 6 April 2026, Section 232 duties on listed steel, aluminum and copper derivatives are charged on the full customs value (CBP CSMS #68253075). Listed goods outside chapters 72/73/74/76 whose applicable metal is less than 15% of the article's weight owe 0% under 9903.82.03 — if you can back the number up. MetalAttest collects component weights and melt-and-pour / smelt-and-cast attestations from your suppliers (English and 中文), computes the metal share, and hands your broker a proof pack.
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What we are not: MetalAttest provides data for the importer's and customs broker's review. We do not classify goods and we do not give customs or legal advice. Your licensed customs broker decides classification and files the entry.
The data problem
CBP expects the aggregate metal weight in kg as a second quantity whenever 9903.82.03 is claimed (CSMS #68253075). Brokers still email clients spreadsheet declaration forms (example), and suppliers often can't say where their metal was smelted (example).
The deadline problem
From 14 September 2026 ACE rejects entry summaries for four copper-cable lines when copper smelt and cast countries are missing (GHY summary of CSMS #69711865). The rules changed again on 8 June 2026 (CSMS #68855869).
The money
Listed tiers run 50% (Annex I-A), 25% (I-B) and a temporary 15% total (Annex III) on full value. On a $40,000 container of a 25%-tier product, qualifying for the 0% de minimis is a $10,000 difference — per shipment.
How the pilot works
- You list your SKUs with the HTS codes you and your broker already use. We show what the current CBP list says for those codes (719 listed lines).
- We chase your suppliers with a bilingual attestation link: components, weights, materials, melt/pour and smelt/cast countries, mill certificates, typed signature and timestamp.
- You get a proof pack per SKU: BOM table, 15%-weight calculation, attestations, and a broker export with metal kg for the second quantity. Your broker reviews and files.
Join the pilot
Free during the pilot. For importers with SKUs in listed HTS lines.
Pre-order the Proof Pack Sprint
$99 refundable deposit, credited toward the $490 Sprint (first 25 SKUs, done-for-you supplier chasing and proof packs). Card deposits coming soon — for now, commit to pay on invoice when your Sprint starts.
Brokers: pilot the white-label portal
Your logo on the supplier attestation portal for your importer clients. Free for 60 days via a non-binding letter of intent.
Pricing
| Plan | Price | Includes |
|---|---|---|
| Free | $0 | 232 scope reference for every listed HTS line; 15% calculator |
| Proof Pack Sprint | $490 one-time $99 refundable deposit | We set up your first 25 SKUs, send and chase supplier attestations (EN/中文), deliver proof packs + broker export |
| Starter | $149/mo ($1,490/yr) | 50 SKUs, 10 active suppliers, proof packs, broker export, rule-change alerts |
| Growth | $349/mo ($3,490/yr) | 300 SKUs, unlimited suppliers, multi-user, CBP-request response pack |
| Broker | $599/mo | White-label supplier portal for up to 25 importer clients |
Card payments are coming soon; pilot participants and pledges are invoiced only when work starts.
FAQ
Do you tell me which HTS code my product is?
No. Classification of specific imports is customs business for a licensed customs broker. You give us the codes you already use; we report what the published CBP list says for those codes and collect composition facts from your suppliers.
Is exactly 15% "under" the threshold?
No. CBP's guidance says the metal must be less than 15 percent of the article's weight (CSMS #68253075). Our calculator treats 15.00% as not qualifying and warns you within 2 percentage points either side.
Which metals count toward the 15%?
Only the metal(s) the annex names for your HTS line. If a line is listed as both an aluminum and a steel derivative, aluminum + steel weights are added together; copper is not, unless the line is also listed for copper (CBP's example is 8302.10.60).
Where does your scope data come from?
From CBP's Metals HTS List attached to CSMS #68855869 (effective 8 June 2026), versioned against the April list. Every scope page links its sources and shows when it was last verified.